Residents of the San Francisco Bay Area and Napa Valley were shaken awake by a 6.0 magnitude earthquake on Sunday morning.  The earthquake hit around 3:30am local time and was centered just south of Napa, California.

This was the strongest earthquake to hit California since 1989 when a 6.9 magnitude quake shook San Francisco.

More than 60 aftershocks hit the area shortly after the initial quake with even more smaller aftershocks expected over the next week. Here is a map to show the epicenter.

Photo Illustration: US Geological Survey, usgs.gov

Here is live streaming video from the San Francisco CBS affiliate:

Check out this video taken on a "Nanny Cam" from YouTube user Camille Alysson Freking in Hercules, CA.

Follow along on Twitter with #sfearthquake or just click HERE.

And more information from the US Geological Survey can be found HERE.